An adjustable fluidized bed hood with high recognition of resistance change

By setting different number of adjustment plugs on the upper part of the hood core tube of the fluidized bed hood to adjust the hood resistance, the problems of complex structure and poor adjustment effect in the prior art are solved, high recognition and simple resistance adjustment are achieved, and the adaptability and stability of the hood are enhanced.

CN113790442BActive Publication Date: 2025-03-25DALIAN LANTIAN ZHIZHONG TECH CO LTD
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Patent Information

Application Number
CN202111209251.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-10-18
Publication Date
2025-03-25
Estimated Expiration
2041-10-18

AI Technical Summary

Technical Problem

When adjusting resistance, existing fluidized bed hoods have problems such as complex structure, high processing accuracy, inconvenient maintenance and poor resistance adjustment effect, resulting in uneven air distribution and bed material leakage.

Method used

An adjustable fluidized bed hood including a hood head and a hood core tube is designed, and the air hood outlet gas circulation area is changed by setting different number of adjustment plugs on the upper part of the hood core tube to adjust the hood resistance. This structure does not adopt a threaded structure, and the adjustment is simple and practical. The resistance can be adjusted only by changing the number of adjustment plugs.

Benefits of technology

It realizes high recognition and simplicity of hood resistance adjustment, reduces the complexity of processing and maintenance, enhances the adaptability of hood in high-temperature environments, and avoids risks such as bed material leakage.

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Abstract

The present invention discloses an adjustable fluidized bed hood with high recognition of resistance change, comprising a hood head and a hood core tube; the hood core tube is a hollow cylindrical structure, the bottom end opening of the hood core tube constitutes the core tube entrance, a plurality of core tube adjustment holes are opened on the top surface of the hood core tube, at least one adjustment plug is spot welded on the core tube adjustment hole, and the hood head is sleeved on the upper part of the hood core tube. The adjustable part involved in the present invention changes the gas flow area of ​​the hood core tube outlet by setting different numbers of plugs on the upper part of the hood core tube in terms of the core tube outlet resistance, and the current resistance type is clearly known by the different numbers of plugs, the influence characteristics on the hood resistance relationship are clear, the resistance characteristics are highly recognizable, and the hood resistance adjustment method is simple and easy to implement.
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